Home / 5,289.18-7,934.17-1,779.20

Finding the Fourth Proportional to 5,289.18, 7,934.17 and 1,779.20

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Solution

The fourth proportional to 5,289.18, 7,934.17 and 1,779.20 is: 2,668.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,289.18 : 7,934.17 = 1,779.20 : x
  2. Step 2: Convert to fraction form
    5,289.18/7,934.17 = 1,779.20/x
  3. Step 3: Cross multiply
    5,289.18x = 7,934.17 × 1,779.20
  4. Step 4: Simplify right side
    5,289.18x = 14,116,431.15
  5. Step 5: Solve for x
    x = 14,116,431.15/5,289.18
  6. Step 6: Final answer
    x = 2,668.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.